The general aim of her thesis was to contribute to the theory development and to develop assessment tools focusing on driving ability and awareness of driving ability among people with stroke or dementia. AHP has developed a new assessment tool, Performance Analysis of Driving Ability (P-Drive), for assessing practical driving ability in people with stroke or dementia. The instrument is currently used both in research and clinically in Scandinavia. Developer and project leader of the research and education of the assessment tool P-Drive. In research AHP has been engaged in projects due to her competence in quantitative and instrument development methods. AHP currently holds a position as lecturer at the University of Sydney, Faculty of Health Sciences, School of Occupational Therapy.